sidney goldsmith and hiram h



(No Model.)

J. S. GOLDSMITH & H. E. SMITH.

' COMBINED SHADE AND OONGENTRATOR FOR ARTIFICIAL LIGHT.

No. 251,711. I Patented Jan. 3,1882.

mm. Inga.

Tum.

N. PETERS Phclwl-hhugnphu. Washinglon. D- C- UNITED STATES PATENTOFFICE.

J. SIDNEY GOLDSMITH AND HIRAM. H. SMITH, OF NEW YORK, N. Y.

COMBINED SHADE AND CONCENTRATOR FOR ARTIFICIAL LIGHT.

SPECIFICATION formingpart of Letters Patent No. 251,711, dated January3, 1882.

Application filed May 5, 1881.

.To all whom it may concern:

Be it known that we, J. SIDNEY GOLDSMITH and HIRAM E. SMITH, citizens ofthe United States, and residing at the city, county, and State of NewYork, have invented a new and useful Improvement in Combined ShadeorReflector and Concentrator for Artificial Lights, as joint inventors,of which the following, taken in connection with accompanyingdr'awings,is a full, clear, and accurate description.

The object of our improvement is to form a combination of a shade orreflector and concentrator which will increase the power and brilliancyof artificial light and which can be applied to artificial lights of allkinds.

In the drawings, Figure 1 represents a vertical section of the shade.Fig. 2 is a plan view of the concentrator or holder. Fig. 3 shows theshade and concentrator combined. Fig.4shows an ordinary gas-burnerandglobe; Fig. 5, a gas-burner provided with my im provement.

It consists of two parts, a reflecting-shade, B, and aconcentrator, A,These parts may be attached together or may be made separate and placedin proper position for use 011 the light. The reflecting'shade is madeof tin or other proper metal or material, preferably with brightsurface, and is placed circumferentially around the light.

The other part of our invention is the concentrator, which is made ofglass in any suitable form and provided with on opening, so that it canfit over the burner of the light.

What we believe to be the best and most powerful formof concentrator tobe used in connection with the shading or reflecting part of ourinvention is described and claimed in an application for Letters Patentof even date herewith, consisting, essentially, of a glass 'center withradiating arms; but other glass concentrators may be used. Theabove-named concentrator is shown in Fig. 2.

(No model.)

This glass concentrator A is placed below the light and at right anglesto the shade or reflector B,which rests upon it. The rays of light bythis means are reflected from the sides of the reflector and thrown downand concentrated on the glass concentrator placed below the light and atright angles to the shade or reflector, and a very brilliant,concentrated, and intense light is gas-lights the force, intensity, andbrilliancy of the light is proportionately increased.

We are aware of a hollow glass globe filled with water and runningparallel and horizontally with the light, but such we do not claim; but

What we claim, and desire to secure by Letters Patent, is-

In combination with a glass light-concentrator consisting of a centerportion having 'a convex lower surface and a series of radial armshaving convex lower surfaces, a reflecting-shade placed above saidconcentrator so as to surround the light, substantially as specifled.

In testimony whereof we have hereunto set our hands this 30th day ofApril, 1881.

J. SIDNEY GOLDSMITH. HIRAM H. SMITH.

Witnesses:

LOUIS W. FRosT, CHARLES G. Con,

